* Chuan Zheng (zhengch...@huawei.com) wrote:
> Add get_dirtyrate_thread() functions to setup query-dirtyrate
> framework.
>
> Signed-off-by: Chuan Zheng <zhengch...@huawei.com>
> Signed-off-by: YanYing Zhuang <ann.zhuangyany...@huawei.com>
Reviewed-by: Dr. David Alan Gilbert <dgilb...@redhat.com>
> ---
> migration/dirtyrate.c | 39 +++++++++++++++++++++++++++++++++++++++
> migration/dirtyrate.h | 32 ++++++++++++++++++++++++++++++++
> migration/meson.build | 1 +
> 3 files changed, 72 insertions(+)
> create mode 100644 migration/dirtyrate.c
> create mode 100644 migration/dirtyrate.h
>
> diff --git a/migration/dirtyrate.c b/migration/dirtyrate.c
> new file mode 100644
> index 0000000..366f4e9
> --- /dev/null
> +++ b/migration/dirtyrate.c
> @@ -0,0 +1,39 @@
> +/*
> + * Dirtyrate implement code
> + *
> + * Copyright (c) 2017-2020 HUAWEI TECHNOLOGIES CO.,LTD.
> + *
> + * Authors:
> + * Chuan Zheng <zhengch...@huawei.com>
> + *
> + * This work is licensed under the terms of the GNU GPL, version 2 or later.
> + * See the COPYING file in the top-level directory.
> + */
> +
> +#include "qemu/osdep.h"
> +#include "qapi/error.h"
> +#include "crypto/hash.h"
> +#include "crypto/random.h"
> +#include "qemu/config-file.h"
> +#include "exec/memory.h"
> +#include "exec/ramblock.h"
> +#include "exec/target_page.h"
> +#include "qemu/rcu_queue.h"
> +#include "qapi/qapi-commands-migration.h"
> +#include "migration.h"
> +#include "dirtyrate.h"
> +
> +static void calculate_dirtyrate(struct DirtyRateConfig config)
> +{
> + /* todo */
> + return;
> +}
> +
> +void *get_dirtyrate_thread(void *arg)
> +{
> + struct DirtyRateConfig config = *(struct DirtyRateConfig *)arg;
> +
> + calculate_dirtyrate(config);
> +
> + return NULL;
> +}
> diff --git a/migration/dirtyrate.h b/migration/dirtyrate.h
> new file mode 100644
> index 0000000..33669b7
> --- /dev/null
> +++ b/migration/dirtyrate.h
> @@ -0,0 +1,32 @@
> +/*
> + * Dirtyrate common functions
> + *
> + * Copyright (c) 2020 HUAWEI TECHNOLOGIES CO., LTD.
> + *
> + * Authors:
> + * Chuan Zheng <zhengch...@huawei.com>
> + *
> + * This work is licensed under the terms of the GNU GPL, version 2 or later.
> + * See the COPYING file in the top-level directory.
> + */
> +
> +#ifndef QEMU_MIGRATION_DIRTYRATE_H
> +#define QEMU_MIGRATION_DIRTYRATE_H
> +
> +/*
> + * Sample 512 pages per GB as default.
> + * TODO: Make it configurable.
> + */
> +#define DIRTYRATE_DEFAULT_SAMPLE_PAGES 512
> +
> +/* Take 1s as default for calculation duration */
> +#define DEFAULT_FETCH_DIRTYRATE_TIME_SEC 1
> +
> +struct DirtyRateConfig {
> + uint64_t sample_pages_per_gigabytes; /* sample pages per GB */
> + int64_t sample_period_seconds; /* time duration between two sampling */
> +};
> +
> +void *get_dirtyrate_thread(void *arg);
> +#endif
> +
> diff --git a/migration/meson.build b/migration/meson.build
> index ac8ff14..30cc6c3 100644
> --- a/migration/meson.build
> +++ b/migration/meson.build
> @@ -21,6 +21,7 @@ softmmu_ss.add(files(
> 'channel.c',
> 'colo-failover.c',
> 'colo.c',
> + 'dirtyrate.c',
> 'exec.c',
> 'fd.c',
> 'global_state.c',
> --
> 1.8.3.1
>
--
Dr. David Alan Gilbert / dgilb...@redhat.com / Manchester, UK
